diddley.bo
New member
I'm in if this works on a 2015 LE. Big thank you to Okki and Anthony.
Hi Zmartin,
It has been 'Unofficially' observed (on a few different occasions) that the 5'th gen 4Runner (the LE in particular...) has a nominal available capacity for it's factory installed electrical accessories ONLY. Using the vehicle's two separate electrical blocks (Engine room Main fusebox, and D/S relay/fusebox) as a rough indicator of it's potential current consumption, along with the factory's choice of the alternator's full output.
After that, a 20% safety margin was factored in which make all of our high consumption accessories e.g., HVAC Blower, A/C clutch, Exterior lighting systems, front & Rear wipers, Heated seats and mirrors...etc, equivalent to 80% of our total fuse load capacity. By combining our total fuse load cap., we can get a very realistic assessment of how much 'Potential' current our vehicle may consume with only the factory installed electrical load accessories in operation.
And what's amazing to me... [MENTION=55815]Okki[/MENTION] did some very similar calculating in one of his recent threads: http://www.toyota-4runner.org/2421227-post42.html ...and came up with much the same conclusion wrt the truck's nominal ability to to provide only enough current for the factory installed electrical accessories; I just find that funny how we both concluded the same range of unimpressive numbers!
To see how this calculation was done, here's an excerpt from a thread which demonstrates exactly what I mean; take a look: http://www.toyota-4runner.org/1734407-post15.html With all due respect to you and to your POV, how much "On-board current" would you like to have available? Is it your philosophy that you'd prefer to have no more current available than what's absolutely necessary... just curious.
And if that's true, what size alternator would you be running, smaller than a 270A to support your add-on accessories e.g., JL audio system (above 2000w), Rigid 40 inch E-series LEDs, two six inch Rigid SR's which are mentioned in your previous quotes... Once again, I'm not criticizing your calculations, just want to know how you came up with the idea of the need for a smaller power plant!
rig, 'Best'!
i didn't really calculate anything, i would guess that those lights and the sound system would only require about 50 or so amps in addition to the factory possible output. technically this would be with everything running at the same time, which will most likely never happen. i was simply trying to save money as i saw they made the same alternator with a lower output that was still more than factory and was cheaper. also i wanted to know because it could effect the gauge wire required for installation.
i see many people saying that these also are plug and play, however i would advise absolutely not installing this without upgrading the wiring. the wiring should always be designed to handle a possible max output scenario and fused accordingly to prevent fires.
I'm in if this works on a 2015 LE. Big thank you to Okki and Anthony.
I'm in for the works for 2015 TEP. Thanks
Hi Anthony,
And thanks for the that great 'Heads-up'! Now that this has come up, it's triggered a couple of questions:
(1) I wonder if the LIN (for linear??) controlled regulator can be removed and swapped out for a conventional Denso analog regulator, or...
(2) If an interface module can be connected to that LIN 'single pin' connector and then there would be a four pin connector on the interface module input side for a simple 'plug-n-play' installation.
"...it'd be nice if I still had my stock 'Denso' 130A alternator (sold it soon after I purchased the 270-XP), and the newer model (2016) 130A so I could take them both apart and see just what parts are interchangeable. Then I could see how to get around the recently modified 'single pin' Denso 130!" Once again Anthony, thanks for all your help and the info!
rig, Cheers
Hey guys,
Sorry about the late update, having a super busy Monday here at work. I've received the alternator from the dealer which the part number reads (27060-31260 Toyota) So it seems like we're okay for the 2015/2016 models. Like previously said I can't say they will work for 2017 so I'd like to hold off on the 17's until I have more information on those.
After you're done ordering, please send me a follow up e-mail with your Year/Make/Model/Liter Motor so I can update your order as it goes into the system. [email protected]
Thanks for everyone's patience! :guitar3:
I understand what you've just said about your wiring load concerns, but what I believe you are not understanding is that 'NONE' of the factory wiring will be affected by the new alternator or the additional aftermarket loads that you've installed! All of your 'Add-on' equipment will have it's own Aftermarket harnesses and relays to carry their loads from the battery (POS) through the designated heavy gauge 'fused' lines and directly to the high power consumption aftermarket accessories, so your stock fuseboxes are never affected by this new electrical system that's been installed!
And going from a stock 130A alternator to a unit that will produce twice what the factory power plant could generate is practically the bare minimum size alternator that I would recommend anyone install that is planning to start adding exterior lighting systems, an audio system upgrade; especially when the audio system will be driven by an amp that is capable of 2,000W True RMS (160A); which is more than the factory alternator can produce if that were it's only assignment... but it's not! I don't see the point of increasing the available current in only fractional increments when starting off with that kind of potential aftermarket consumption! Hope this explains my reasoning,
Cheers, rig
how would none of the factory wiring be effected when the new alternator could potentially see a high load (the factory wiring is fused at 130 amps)? which tells me that the gauge wire used to hook the alternator to the battery can probably only handle around 130 amps...
how would none of the factory wiring be effected when the new alternator could potentially see a high load (the factory wiring is fused at 130 amps)? which tells me that the gauge wire used to hook the alternator to the battery can probably only handle around 130 amps...
When adding a high output alternator you'll want to do what they call the Big 3 wiring upgrade. Shown here
How To Do The Big 3: Tutorial - Electrical-battery- Alternators- Wiring - SMD Forum
You'll add on bigger cable that goes along side the factory wire, why you ask? Because current will take the path of least resistance which is the newly added bigger wire. You factory accessories will not request more current than they already do so the alternator will not "overcharge" any accessories causing failures within your components. All alternators are demand based, meaning that with all of your accessories off your vehicle will pull anywhere from 30-40 amps by itself and that's all the alternator will generate. Once you start turning on accessories and demanding more current the alternator will generate more current to keep up with the demand. When people add winches, or stereo equipment to their vehicle they run bigger wire from the battery to those accessories to ensure they current flows freely with low resistance.
Hope this answers your question.
Zmartin19's Question...
DCPower_Anthony's Explanation...
Hi [MENTION=144561]DCPower_Anthony[/MENTION],
I liked your reply sooo much I decided to take the day off and just post this DC Power Engineering 270-XP Review/tutorial that was written when I first discovered and installed the 270-XP just over two 'trouble-free' years ago; "See link">>: http://www.toyota-4runner.org/5th-gen-t4rs/172070-4runner-alternator-upgrade-gen-5-a.html I know that (Thanks to my community brothers, Paul (Okki) and Anthony) we have quite a few forum members here that will be dropping in the DCPE 270-XP; so glad to see so many of you jumping on-board! There may still be some of you, however, that have never read this Alternator upgrade essay, so I hope that if you have questions you will take this opportunity to have a look at it because a lot of those questions will most likely have been covered here in this thread,
'Best to you all'! rig